Harm's Way is great in aggro vs. aggro mirrors, where there are lots of small and medium sized creatures going to town on one another. You can blow out some opponents pretty hard with this pseudo-combat trick; on the other hand, it does a bad Magma Spray impression against a control, or otherwise creature-light, deck. Emerge Unscathed usually acts as a Negate on initial casting, and then an Artful Dodge on the rebound, and the total package has been surprisingly effective. It's become probably my favourite one-mana protection spell with upside, right up there with Vines of Vastwood. Ajani's Presence reads well, but in practise, doesn't play out as anything special; indestructible is surprisingly lacklustre, because of a multitude of cube effects that exile, grant -X/-X, pacify, or otherwise do Bad Things to your creatures.